Joint for roofing materials.



. at Wauke UNITED STATES PATENT SOLOMON H.. GOLDBE'RG, OFWAUKEGAN, ILLINOIS.

- reim' non Roosma- MATERIALS.

v Specification of Letters II'atent.

' Patented sept. 2e, reos.

' Application filed July 1-1, 1907,l Serial No. 383,844.

To all whom 'it may concern?,

`neit known that I, semmaeem BERG, a citizen of the United States, residing n, in the county of Lake andy State of Il1nois,. have invented certain new and useful Improvements in Joints for Roof-'- ing Materials; `and I do hereby declare the following to be a full, clear, and exact de scription of the invention, such as will enableI others skilled inthe art to which it appertains to make/and usethe same.

My invention relates to fastenings for roofing material in general, and especially to that class of roofing material wherein the roof is covered by abrous body portion which in turn is covered outer coating.

by a cement-like My invention consists in the'novel nail 'or v joint now in common use.

2, `9 represents the point 4Referring to Fi Il4 may be of'anydesired of my nail, whic shape, and 10, the body or driving portion thereof.l In Fig. 1, I have shown this oint as of a flattened triangular shape, the ody portion and holding portion 7, being flatin both cases. A sharp'bendjoinst'he body and holding portions, and furnishes a portion that is adapted to ,receive the strokes of a. 4 hammer, .or other driving tool.

8 represents, in Fig. 1, the head of .my nail for the purpose of holding the upper la of the rooting material when thel same is masied down thereupon, and 11 represents a square sha ed head in Figf2.V V l A T e form shown in Fig. 3, is provided with a point, a body and a driving portion, but the latter is provided with notches 112, and the bend joining 'the head"'with the holding portion 7, is' flattened, as shown in Fig. 2.

Fig. 7,-illustratesa joint of roofing mate-` rial consisting of ilatsheets, and for which my fastenin'gs are peculiarly adapted.4 In this -figure the lower lap 1G, of the roofing material is first placed upon the roof 1-7, the

therefore from rust.

driving portion 2 of the nail is driven therethrough' by' striking' upon the bend 3, above described?, andthe holding portion allowed 'to come down u on the lower lap. A fur- 60 ther of t e nail causes this holding portionll, to'finally come down upon the said lower lap: as illustrated. In driving my fastener through this lower lap this inclined holding portion, shown in Figs. 1 and 4, first 65 contacts with the said lap at the bend where it vjoins lthe head, as above described, and the further driving of the fastener causes this bend' to be4 extended and to therefore stretch the'lap, while at the same time the flattening 70 down of the said holding portion 4, causes the said lower lap to be held in this stretched or extended condition. This inclined feature ofthe holding portion 7, of my nail constitutes an important feature of my invention.

After the nail is driyen home as above described, the upper lap' ld8, is placed over the same as shown, and the head driven down upon the saidupper lap. By this means the holding-portion of the nail not only stretches and holds the lap securely in position, but

lowing to the fact that the head is bentl or driven down upon the upper lap, the said holding portion is also adapted to be thoroughly protected from the Weather and Since this rotection from weather and rust'is afforde water is not ladmitted to the body or driving portion, and therefore it does not rust and cause leaks in the roof as ordinarily happens in the ordinary joint, made with. the ordinary nail.

In Fig. 8, I have illustrated the joint and nail in common use, and it can there beseen that the flat head 19, or holding portion, of

the nail there shownis much more liable to rust and leak than is the holding portion 4, of my nail, and foi1 the reason that the same is exposed and Water may work its way around to the driving ,portion of the nail. A

My nail may be made in any of the well known ways, out of wire, or it may be stamped outmr cut out of sheet material.

It will be seen that the holding portions taken in connection with the bends formed at 105 the juncture of the' heads with said holding portions, constitute also an effective guide or gage for laying on the upper lap. That is to say, after a series of nails are driven through the lower lap all in a straight line, the parts 11o just mentioned forman effective guide for aiding the workmen to' put on the upper lap in n straight manner, for all he has to do, is

,to jenn the edge of said upper lap over the holding portions and up against the bends described, and to then festen down the heads. rlhis saves time and secures a, much neeter and better job then Would be the ease, Were other forms of fastenings used.

Having now described my invention, What i claim and desire to secure by Letters Patent is l. A. fastener for roofing materiel eornprising e. pointed Het body or driving portion; an

- elongated flat holding portion joined to bltdy portion by e bend adapted to receive the strokes of a hammer; and e head, seid head joined to seid holding portion by e bend adapted to `permit the said heed to be reedily mashed down into a holding position, substentially es described.

2. A fastener for rooting materiel comprising e. liet pointed body or driving portion en elongated `flattened holding portion joined to seid body portion by a bend adapted to reeeiye the strokes of a hammer; end a. square seems shaped heed, seid heed joinedto snidlholding portion by a. bend adopted to permit the said head to be readily mashed down into n. holding position, substantially ns described.

3. A. fastening, comprising :L flattened point; e iattened body or driving portion;

e flattened holding portion, and :t square shaped head joined to the liet holding portion by e flattened bend in the metal, substentielly as described. A

'4. A fastening mede from :t single piece of `bent Wire and comprising :t ihtttened point; 

